器材原始說明資料： Memory Apparatus , Jastrow's improved form. (ジャストロ氏) 記憶器
Stoelting, C. H. (1928-1945) No.21105
実験心理学 / 大槻快尊著，東京：成美堂，明治 44.9 (1911)
Experimental psychology : a manual of laboratory practice / Titchener Edward Bradford, New York ; London : Macmillan (1901)
Manual of mental and physical tests / Whipple Guy Montrose, Baltimore : Warwick & York (1921)
Memory Apparatus, Jatrow's; improved form. This model is a modernization of the well-known memory apparatus originally devised by Prof. Joseph Jastrow. of the Dept. of Psychology of the University of Wisconsin, and manufactured by us for the last thirty years. It makes very little noise and embodies all the latest and best in present-day mechanics. We have retained all the good features of the old model and added a number of new ones which we are sure will be appreciated by those who have had experience with the wood models. The entire apparatus is now made of metal and mounted on a heavy iron base. The screen is made of aluminum, with a dull finish, and provided with grooved guides, placed horizontally, for taking a series of diaphragms and slides that meet all the requirements of memory work. Operation of the apparatus is from the rear—out of sight of the class. The device for raising the card-holder provides movements of 1/2, 1, 1(1/2), and 2 in. in extent, and permits instant return of the holder to the original position by the mere depression of a lever. The shutter gives a clear aperture of 2 in. high and 6 in. wide, and is opened and closed by depressing and releasing a lever on one side of the apparatus. For extended exposure and final release a trip and setting lever are located on the other side of the rear. The stimulus card is slipped into the card-holder from the top between the two projecting grooved guides. It makes no difference whether the card-holder is at the top or at the bottom during the process. This memory apparatus also takes the place of the Chicago University memory drum which we formerly manufactured. Instructions for operation accompany each apparatus.
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